N=16 Spherical Shell Closure in O-24
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K. Tshoo
- Function : Author
Y. Satou
- Function : Author
H. Bhang
- Function : Author
S. Choi
- Function : Author
T. Nakamura
- Function : Author
Y. Kondo
- Function : Author
S. Deguchi
- Function : Author
Y. Kawada
- Function : Author
N. Kobayashi
- Function : Author
Y. Nakayama
- Function : Author
K.N. Tanaka
- Function : Author
N. Tanaka
- Function : Author
N. Aoi
- Function : Author
M. Ishihara
- Function : Author
T. Motobayashi
- Function : Author
H. Otsu
- Function : Author
H. Sakurai
- Function : Author
- PersonId : 755357
- ORCID : 0000-0002-6215-4254
S. Takeuchi
- Function : Author
Y. Togano
- Function : Author
K. Yoneda
- Function : Author
Z.H. Li
- Function : Author
F. Delaunay
- Function : Author
- PersonId : 740010
- IdHAL : franck-l-delaunay
- ORCID : 0000-0002-1703-2434
J. Gibelin
- Function : Author
- PersonId : 11987
- IdHAL : julien-gibelin
- ORCID : 0000-0001-6751-3714
- IdRef : 105736708
T. Honda
- Function : Author
M. Matsushita
- Function : Author
T. Kobayashi
- Function : Author
Y. Miyashita
- Function : Author
T. Sumikama
- Function : Author
- PersonId : 757885
- ORCID : 0000-0002-7262-5339
K. Yoshinaga
- Function : Author
S. Shimoura
- Function : Author
D. Sohler
- Function : Author
- PersonId : 755248
- ORCID : 0000-0002-9250-135X
T. Zheng
- Function : Author
Z.X. Cao
- Function : Author
Abstract
The unbound excited states of the neutron drip-line isotope O-24 have been investigated via the O-24(p, p')O-23 + n reaction in inverse kinematics at a beam energy of 62 MeV/nucleon. The decay energy spectrum of O-24* was reconstructed from the momenta of O-23 and the neutron. The spin parity of the first excited state, observed at E-x = 4.65 +/- 0.14 MeV, was determined to be J(pi) = 2(+) from the angular distribution of the cross section. Higher-lying states were also observed. The quadrupole transition parameter beta(2) of the 2(1)(+) state was deduced, for the first time, to be 0.15 +/- 0.04. The relatively high excitation energy and small beta(2) value are indicative of the N = 16 shell closure in O-24.